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Chemistry
Chemistry
Problem
An electron in a
He
+
\text{He}^+
He
+
ion makes a transition from the
n
=
3
n=3
n
=
3
orbit to the
n
=
2
n=2
n
=
2
orbit. Find the wavelength of the emitted photon. \newline (Take
h
=
6.63
×
10
−
34
J
s
h=6.63\times10^{-34}\,\text{J\,s}
h
=
6.63
×
1
0
−
34
J
s
,
c
=
3.00
×
10
8
m
s
−
1
c=3.00\times10^{8}\,\text{m\,s}^{-1}
c
=
3.00
×
1
0
8
m
s
−
1
,
1
eV
=
1.60
×
10
−
19
J
1\,\text{eV}=1.60\times10^{-19}\,\text{J}
1
eV
=
1.60
×
1
0
−
19
J
.) a)
102
nm
102\,\text{nm}
102
nm
b)
165
nm
165\,\text{nm}
165
nm
c)
137
nm
137\,\text{nm}
137
nm
d)
330
nm
330\,\text{nm}
330
nm
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